src/msw/slidrmsw.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        slidermsw.cpp
// Purpose:     wxSliderMSW
// Author:      Julian Smart
// Modified by:
// Created:     04/01/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:       wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "slidrmsw.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include <stdio.h>
#endif

#include "wx/utils.h"
#include "wx/brush.h"
#include "wx/msw/slidrmsw.h"
#include "wx/msw/private.h"

IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)

// Slider
wxSliderMSW::wxSliderMSW()
{
  m_staticValue = 0;
  m_staticMin = 0;
  m_staticMax = 0;
  m_pageSize = 1;
  m_lineSize = 1;
  m_rangeMax = 0;
  m_rangeMin = 0;
}

bool wxSliderMSW::Create(wxWindow *parent, wxWindowID id,
           int value, int minValue, int maxValue,
           const wxPoint& pos,
           const wxSize& size, long style,
           const wxValidator& validator,
           const wxString& name)
{
    if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
        style |= wxBORDER_NONE;

  SetName(name);
#if wxUSE_VALIDATORS
  SetValidator(validator);
#endif // wxUSE_VALIDATORS

  if (parent) parent->AddChild(this);
  SetBackgroundColour(parent->GetBackgroundColour()) ;
  SetForegroundColour(parent->GetForegroundColour()) ;

  m_staticValue = 0;
  m_staticMin = 0;
  m_staticMax = 0;
  m_pageSize = 1;
  m_lineSize = 1;
  m_windowStyle = style;

  if ( id == -1 )
      m_windowId = (int)NewControlId();
  else
    m_windowId = id;

  int x = pos.x;
  int y = pos.y;
  int width = size.x;
  int height = size.y;

  // non-Win95 implementation

  long msStyle = SS_CENTER;

  WXDWORD exStyle = 0;
  msStyle |= MSWGetStyle(GetWindowStyle(), & exStyle) ;

  m_staticValue = (WXHWND) CreateWindowEx(exStyle, wxT("STATIC"), NULL,
                           msStyle,
                           0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                           wxGetInstance(), NULL);

  // Now create min static control
  wxString buf;
  buf.Printf(wxT("%d"), minValue);
  DWORD wstyle = STATIC_FLAGS;
  if ( m_windowStyle & wxCLIP_SIBLINGS )
        wstyle |= WS_CLIPSIBLINGS;
  m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), buf,
                         wstyle,
                         0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                         wxGetInstance(), NULL);

  msStyle = 0;
  if (m_windowStyle & wxSL_VERTICAL)
    msStyle = SBS_VERT | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
  else
    msStyle = SBS_HORZ | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;

  HWND scroll_bar = CreateWindowEx(exStyle, wxT("SCROLLBAR"), wxEmptyString,
                         msStyle,
                         0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
                         wxGetInstance(), NULL);

  m_pageSize = (int)((maxValue-minValue)/10);
  m_rangeMax = maxValue;
  m_rangeMin = minValue;

  ::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE);
  ::SetScrollPos(scroll_bar, SB_CTL, value, FALSE);
  ShowWindow(scroll_bar, SW_SHOW);

  m_hWnd = (WXHWND)scroll_bar;

  // Subclass again for purposes of dialog editing mode
  SubclassWin(GetHWND());

  // Finally, create max value static item
  buf.Printf(wxT("%d"), maxValue);
  wstyle = STATIC_FLAGS;
  if ( m_windowStyle & wxCLIP_SIBLINGS )
        wstyle |= WS_CLIPSIBLINGS;
  m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), buf,
                         wstyle,
                         0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
                         wxGetInstance(), NULL);

  SetFont(parent->GetFont());

  if (GetFont().Ok())
  {
//    GetFont()->RealizeResource();
    if (GetFont().GetResourceHandle())
    {
        if ( m_staticMin )
              SendMessage((HWND)m_staticMin,WM_SETFONT,
                      (WPARAM)GetFont().GetResourceHandle(),0L);
        if ( m_staticMax )
              SendMessage((HWND)m_staticMax,WM_SETFONT,
                  (WPARAM)GetFont().GetResourceHandle(),0L);
          if (m_staticValue)
            SendMessage((HWND)m_staticValue,WM_SETFONT,
                    (WPARAM)GetFont().GetResourceHandle(),0L);
    }
  }

  SetSize(x, y, width, height);
  SetValue(value);

  return TRUE;
}

bool wxSliderMSW::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
                              WXWORD pos, WXHWND control)
{
    int position = ::GetScrollPos((HWND)control, SB_CTL);

    int nScrollInc;
    wxEventType scrollEvent = wxEVT_NULL;
    switch ( wParam )
    {
        case SB_TOP:
            nScrollInc = m_rangeMax - position;
            scrollEvent = wxEVT_SCROLL_TOP;
            break;

        case SB_BOTTOM:
            nScrollInc = - position;
            scrollEvent = wxEVT_SCROLL_BOTTOM;
            break;

        case SB_LINEUP:
            nScrollInc = - GetLineSize();
            scrollEvent = wxEVT_SCROLL_LINEUP;
            break;

        case SB_LINEDOWN:
            nScrollInc = GetLineSize();
            scrollEvent = wxEVT_SCROLL_LINEDOWN;
            break;

        case SB_PAGEUP:
            nScrollInc = -GetPageSize();
            scrollEvent = wxEVT_SCROLL_PAGEUP;
            break;

        case SB_PAGEDOWN:
            nScrollInc = GetPageSize();
            scrollEvent = wxEVT_SCROLL_PAGEDOWN;
            break;

        case SB_THUMBTRACK:
        case SB_THUMBPOSITION:
#ifdef __WIN32__
            nScrollInc = (signed short)pos - position;
#else
            nScrollInc = pos - position;
#endif
            scrollEvent = wxEVT_SCROLL_THUMBTRACK;
            break;

        default:
            nScrollInc = 0;
    }

    if (nScrollInc == 0)
    {
        // no event...
        return FALSE;
    }

    int newPos = position + nScrollInc;

    if ( (newPos < GetMin()) || (newPos > GetMax()) )
    {
        // out of range - but we did process it
        return TRUE;
    }

    SetValue(newPos);

    wxScrollEvent event(scrollEvent, m_windowId);
    event.SetPosition(newPos);
    event.SetEventObject( this );
    GetEventHandler()->ProcessEvent(event);

    wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
    cevent.SetInt( newPos );
    cevent.SetEventObject( this );

    return GetEventHandler()->ProcessEvent( cevent );
}

wxSliderMSW::~wxSliderMSW()
{
    if (m_staticMin)
      DestroyWindow((HWND) m_staticMin);
    if (m_staticMax)
      DestroyWindow((HWND) m_staticMax);
    if (m_staticValue)
      DestroyWindow((HWND) m_staticValue);
}

int wxSliderMSW::GetValue() const
{
  return ::GetScrollPos(GetHwnd(), SB_CTL);
}

void wxSliderMSW::SetValue(int value)
{
  ::SetScrollPos(GetHwnd(), SB_CTL, value, TRUE);
  if (m_staticValue)
  {
    wxString buf;
    buf.Printf(wxT("%d"), value);
    SetWindowText((HWND) m_staticValue, buf);
  }
}

void wxSliderMSW::GetSize(int *width, int *height) const
{
  RECT rect;
  rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;

  wxFindMaxSize(GetHWND(), &rect);

  if (m_staticMin)
    wxFindMaxSize(m_staticMin, &rect);
  if (m_staticMax)
    wxFindMaxSize(m_staticMax, &rect);
  if (m_staticValue)
    wxFindMaxSize(m_staticValue, &rect);

  *width = rect.right - rect.left;
  *height = rect.bottom - rect.top;
}

void wxSliderMSW::GetPosition(int *x, int *y) const
{
  wxWindow *parent = GetParent();
  RECT rect;
  rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;

  wxFindMaxSize(GetHWND(), &rect);

  if (m_staticMin)
    wxFindMaxSize(m_staticMin, &rect);
  if (m_staticMax)
    wxFindMaxSize(m_staticMax, &rect);
  if (m_staticValue)
    wxFindMaxSize(m_staticValue, &rect);

  // Since we now have the absolute screen coords,
  // if there's a parent we must subtract its top left corner
  POINT point;
  point.x = rect.left;
  point.y = rect.top;
  if (parent)
    ::ScreenToClient((HWND) parent->GetHWND(), &point);

  // We may be faking the client origin.
  // So a window that's really at (0, 30) may appear
  // (to wxWin apps) to be at (0, 0).
  if (GetParent())
  {
    wxPoint pt(GetParent()->GetClientAreaOrigin());
    point.x -= pt.x;
    point.y -= pt.y;
  }
  *x = point.x;
  *y = point.y;
}

// TODO one day, make sense of all this horros and replace it with a readable
//      DoGetBestSize()
void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
  int x1 = x;
  int y1 = y;
  int w1 = width;
  int h1 = height;

  int currentX, currentY;
  GetPosition(&currentX, &currentY);
  if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
    x1 = currentX;
  if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
    y1 = currentY;

  AdjustForParentClientOrigin(x1, y1, sizeFlags);

  wxChar buf[300];

  int x_offset = x;
  int y_offset = y;

  int cx;     // slider,min,max sizes
  int cy;
  int cyf;

  wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont());

  if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
  {
    if ( m_windowStyle & wxSL_LABELS )
    {
    int min_len = 0;

    GetWindowText((HWND) m_staticMin, buf, 300);
    GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());

    int max_len = 0;

    GetWindowText((HWND) m_staticMax, buf, 300);
    GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
    if (m_staticValue)
    {
      int new_width = (int)(wxMax(min_len, max_len));
      int valueHeight = (int)cyf;
#ifdef __WIN32__
      // For some reason, under Win95, the text edit control has
      // a lot of space before the first character
      new_width += 3*cx;
#endif
      MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
      x_offset += new_width + cx;
    }

    MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
    x_offset += (int)(min_len + cx);

    int slider_length = (int)(w1 - x_offset - max_len - cx);

    int slider_height = cy;

    // Slider must have a minimum/default length/height
    if (slider_length < 100)
      slider_length = 100;

    MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE);
    x_offset += slider_length + cx;

    MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
    }
    else
    {
        // No labels
        if ( w1 < 0 )
            w1 = 200;
        if ( h1 < 0 )
            h1 = 20;
        MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
    }
  }
  else
  {
    if ( m_windowStyle & wxSL_LABELS )
    {
    int min_len;
    GetWindowText((HWND) m_staticMin, buf, 300);
    GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont());

    int max_len;
    GetWindowText((HWND) m_staticMax, buf, 300);
    GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());

    if (m_staticValue)
    {
      int new_width = (int)(wxMax(min_len, max_len));
      int valueHeight = (int)cyf;
/*** Suggested change by George Tasker - remove this block...
#ifdef __WIN32__
      // For some reason, under Win95, the text edit control has
      // a lot of space before the first character
      new_width += 3*cx;
#endif
 ... and replace with following line: */
      new_width += cx;

      MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
      y_offset += valueHeight;
    }

    MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
    y_offset += cy;

    int slider_length = (int)(h1 - y_offset - cy - cy);

    // Use character height as an estimate of slider width (yes, width)
    int slider_width = cy;

    // Slider must have a minimum/default length
    if (slider_length < 100)
      slider_length = 100;

    MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE);
    y_offset += slider_length;

    MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
    }
    else
    {
        // No labels
        if ( w1 < 0 )
            w1 = 20;
        if ( h1 < 0 )
            h1 = 200;
        MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
    }
  }
}

void wxSliderMSW::SetRange(int minValue, int maxValue)
{
  m_rangeMin = minValue;
  m_rangeMax = maxValue;

  ::SetScrollRange(GetHwnd(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
  wxChar buf[40];
  if ( m_staticMin )
  {
      wxSprintf(buf, wxT("%d"), m_rangeMin);
      SetWindowText((HWND) m_staticMin, buf);
  }

  if ( m_staticMax )
  {
    wxSprintf(buf, wxT("%d"), m_rangeMax);
    SetWindowText((HWND) m_staticMax, buf);
  }
}

WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
            WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
{
  if ( nCtlColor == CTLCOLOR_SCROLLBAR )
    return 0;

  // Otherwise, it's a static
  return wxControl::OnCtlColor(pDC, pWnd, nCtlColor, message, wParam, lParam);
}

void wxSliderMSW::SetPageSize(int pageSize)
{
  m_pageSize = pageSize;
}

int wxSliderMSW::GetPageSize() const
{
  return m_pageSize;
}

void wxSliderMSW::SetLineSize(int lineSize)
{
  m_lineSize = lineSize;
}

int wxSliderMSW::GetLineSize() const
{
  return m_lineSize;
}

// Not yet implemented
void wxSliderMSW::SetThumbLength(int WXUNUSED(lenPixels))
{
}

// Not yet implemented
int wxSliderMSW::GetThumbLength() const
{
    return 0;
}

bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const
{
    return ( hWnd == GetStaticMin() || hWnd == GetStaticMax() || hWnd == GetEditValue() );
}

void wxSliderMSW::Command (wxCommandEvent & event)
{
  SetValue (event.GetInt());
  ProcessCommand (event);
}

bool wxSliderMSW::Show(bool show)
{
    wxWindow::Show(show);

    int cshow;
    if (show)
        cshow = SW_SHOW;
    else
        cshow = SW_HIDE;

    if(m_staticValue)
        ShowWindow((HWND) m_staticValue, (BOOL)cshow);
    if(m_staticMin)
        ShowWindow((HWND) m_staticMin, (BOOL)cshow);
    if(m_staticMax)
        ShowWindow((HWND) m_staticMax, (BOOL)cshow);
    return TRUE;
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: slidermsw.cpp
	3	// Purpose: wxSliderMSW
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 04/01/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation "slidrmsw.h"
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#ifdef __BORLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#ifndef WX_PRECOMP
	24	#include <stdio.h>
	25	#endif
	26
	27	#include "wx/utils.h"
	28	#include "wx/brush.h"
	29	#include "wx/msw/slidrmsw.h"
	30	#include "wx/msw/private.h"
	31
	32	IMPLEMENT_DYNAMIC_CLASS(wxSliderMSW, wxControl)
	33
	34	// Slider
	35	wxSliderMSW::wxSliderMSW()
	36	{
	37	m_staticValue = 0;
	38	m_staticMin = 0;
	39	m_staticMax = 0;
	40	m_pageSize = 1;
	41	m_lineSize = 1;
	42	m_rangeMax = 0;
	43	m_rangeMin = 0;
	44	}
	45
	46	bool wxSliderMSW::Create(wxWindow *parent, wxWindowID id,
	47	int value, int minValue, int maxValue,
	48	const wxPoint& pos,
	49	const wxSize& size, long style,
	50	const wxValidator& validator,
	51	const wxString& name)
	52	{
	53	if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
	54	style \|= wxBORDER_NONE;
	55
	56	SetName(name);
	57	#if wxUSE_VALIDATORS
	58	SetValidator(validator);
	59	#endif // wxUSE_VALIDATORS
	60
	61	if (parent) parent->AddChild(this);
	62	SetBackgroundColour(parent->GetBackgroundColour()) ;
	63	SetForegroundColour(parent->GetForegroundColour()) ;
	64
	65	m_staticValue = 0;
	66	m_staticMin = 0;
	67	m_staticMax = 0;
	68	m_pageSize = 1;
	69	m_lineSize = 1;
	70	m_windowStyle = style;
	71
	72	if ( id == -1 )
	73	m_windowId = (int)NewControlId();
	74	else
	75	m_windowId = id;
	76
	77	int x = pos.x;
	78	int y = pos.y;
	79	int width = size.x;
	80	int height = size.y;
	81
	82	// non-Win95 implementation
	83
	84	long msStyle = SS_CENTER;
	85
	86	WXDWORD exStyle = 0;
	87	msStyle \|= MSWGetStyle(GetWindowStyle(), & exStyle) ;
	88
	89	m_staticValue = (WXHWND) CreateWindowEx(exStyle, wxT("STATIC"), NULL,
	90	msStyle,
	91	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	92	wxGetInstance(), NULL);
	93
	94	// Now create min static control
	95	wxString buf;
	96	buf.Printf(wxT("%d"), minValue);
	97	DWORD wstyle = STATIC_FLAGS;
	98	if ( m_windowStyle & wxCLIP_SIBLINGS )
	99	wstyle \|= WS_CLIPSIBLINGS;
	100	m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), buf,
	101	wstyle,
	102	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	103	wxGetInstance(), NULL);
	104
	105	msStyle = 0;
	106	if (m_windowStyle & wxSL_VERTICAL)
	107	msStyle = SBS_VERT \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	108	else
	109	msStyle = SBS_HORZ \| WS_CHILD \| WS_VISIBLE \| WS_TABSTOP ;
	110
	111	HWND scroll_bar = CreateWindowEx(exStyle, wxT("SCROLLBAR"), wxEmptyString,
	112	msStyle,
	113	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
	114	wxGetInstance(), NULL);
	115
	116	m_pageSize = (int)((maxValue-minValue)/10);
	117	m_rangeMax = maxValue;
	118	m_rangeMin = minValue;
	119
	120	::SetScrollRange(scroll_bar, SB_CTL, minValue, maxValue, FALSE);
	121	::SetScrollPos(scroll_bar, SB_CTL, value, FALSE);
	122	ShowWindow(scroll_bar, SW_SHOW);
	123
	124	m_hWnd = (WXHWND)scroll_bar;
	125
	126	// Subclass again for purposes of dialog editing mode
	127	SubclassWin(GetHWND());
	128
	129	// Finally, create max value static item
	130	buf.Printf(wxT("%d"), maxValue);
	131	wstyle = STATIC_FLAGS;
	132	if ( m_windowStyle & wxCLIP_SIBLINGS )
	133	wstyle \|= WS_CLIPSIBLINGS;
	134	m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), buf,
	135	wstyle,
	136	0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
	137	wxGetInstance(), NULL);
	138
	139	SetFont(parent->GetFont());
	140
	141	if (GetFont().Ok())
	142	{
	143	// GetFont()->RealizeResource();
	144	if (GetFont().GetResourceHandle())
	145	{
	146	if ( m_staticMin )
	147	SendMessage((HWND)m_staticMin,WM_SETFONT,
	148	(WPARAM)GetFont().GetResourceHandle(),0L);
	149	if ( m_staticMax )
	150	SendMessage((HWND)m_staticMax,WM_SETFONT,
	151	(WPARAM)GetFont().GetResourceHandle(),0L);
	152	if (m_staticValue)
	153	SendMessage((HWND)m_staticValue,WM_SETFONT,
	154	(WPARAM)GetFont().GetResourceHandle(),0L);
	155	}
	156	}
	157
	158	SetSize(x, y, width, height);
	159	SetValue(value);
	160
	161	return TRUE;
	162	}
	163
	164	bool wxSliderMSW::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
	165	WXWORD pos, WXHWND control)
	166	{
	167	int position = ::GetScrollPos((HWND)control, SB_CTL);
	168
	169	int nScrollInc;
	170	wxEventType scrollEvent = wxEVT_NULL;
	171	switch ( wParam )
	172	{
	173	case SB_TOP:
	174	nScrollInc = m_rangeMax - position;
	175	scrollEvent = wxEVT_SCROLL_TOP;
	176	break;
	177
	178	case SB_BOTTOM:
	179	nScrollInc = - position;
	180	scrollEvent = wxEVT_SCROLL_BOTTOM;
	181	break;
	182
	183	case SB_LINEUP:
	184	nScrollInc = - GetLineSize();
	185	scrollEvent = wxEVT_SCROLL_LINEUP;
	186	break;
	187
	188	case SB_LINEDOWN:
	189	nScrollInc = GetLineSize();
	190	scrollEvent = wxEVT_SCROLL_LINEDOWN;
	191	break;
	192
	193	case SB_PAGEUP:
	194	nScrollInc = -GetPageSize();
	195	scrollEvent = wxEVT_SCROLL_PAGEUP;
	196	break;
	197
	198	case SB_PAGEDOWN:
	199	nScrollInc = GetPageSize();
	200	scrollEvent = wxEVT_SCROLL_PAGEDOWN;
	201	break;
	202
	203	case SB_THUMBTRACK:
	204	case SB_THUMBPOSITION:
	205	#ifdef __WIN32__
	206	nScrollInc = (signed short)pos - position;
	207	#else
	208	nScrollInc = pos - position;
	209	#endif
	210	scrollEvent = wxEVT_SCROLL_THUMBTRACK;
	211	break;
	212
	213	default:
	214	nScrollInc = 0;
	215	}
	216
	217	if (nScrollInc == 0)
	218	{
	219	// no event...
	220	return FALSE;
	221	}
	222
	223	int newPos = position + nScrollInc;
	224
	225	if ( (newPos < GetMin()) \|\| (newPos > GetMax()) )
	226	{
	227	// out of range - but we did process it
	228	return TRUE;
	229	}
	230
	231	SetValue(newPos);
	232
	233	wxScrollEvent event(scrollEvent, m_windowId);
	234	event.SetPosition(newPos);
	235	event.SetEventObject( this );
	236	GetEventHandler()->ProcessEvent(event);
	237
	238	wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
	239	cevent.SetInt( newPos );
	240	cevent.SetEventObject( this );
	241
	242	return GetEventHandler()->ProcessEvent( cevent );
	243	}
	244
	245	wxSliderMSW::~wxSliderMSW()
	246	{
	247	if (m_staticMin)
	248	DestroyWindow((HWND) m_staticMin);
	249	if (m_staticMax)
	250	DestroyWindow((HWND) m_staticMax);
	251	if (m_staticValue)
	252	DestroyWindow((HWND) m_staticValue);
	253	}
	254
	255	int wxSliderMSW::GetValue() const
	256	{
	257	return ::GetScrollPos(GetHwnd(), SB_CTL);
	258	}
	259
	260	void wxSliderMSW::SetValue(int value)
	261	{
	262	::SetScrollPos(GetHwnd(), SB_CTL, value, TRUE);
	263	if (m_staticValue)
	264	{
	265	wxString buf;
	266	buf.Printf(wxT("%d"), value);
	267	SetWindowText((HWND) m_staticValue, buf);
	268	}
	269	}
	270
	271	void wxSliderMSW::GetSize(int width, int height) const
	272	{
	273	RECT rect;
	274	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	275
	276	wxFindMaxSize(GetHWND(), &rect);
	277
	278	if (m_staticMin)
	279	wxFindMaxSize(m_staticMin, &rect);
	280	if (m_staticMax)
	281	wxFindMaxSize(m_staticMax, &rect);
	282	if (m_staticValue)
	283	wxFindMaxSize(m_staticValue, &rect);
	284
	285	*width = rect.right - rect.left;
	286	*height = rect.bottom - rect.top;
	287	}
	288
	289	void wxSliderMSW::GetPosition(int x, int y) const
	290	{
	291	wxWindow *parent = GetParent();
	292	RECT rect;
	293	rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
	294
	295	wxFindMaxSize(GetHWND(), &rect);
	296
	297	if (m_staticMin)
	298	wxFindMaxSize(m_staticMin, &rect);
	299	if (m_staticMax)
	300	wxFindMaxSize(m_staticMax, &rect);
	301	if (m_staticValue)
	302	wxFindMaxSize(m_staticValue, &rect);
	303
	304	// Since we now have the absolute screen coords,
	305	// if there's a parent we must subtract its top left corner
	306	POINT point;
	307	point.x = rect.left;
	308	point.y = rect.top;
	309	if (parent)
	310	::ScreenToClient((HWND) parent->GetHWND(), &point);
	311
	312	// We may be faking the client origin.
	313	// So a window that's really at (0, 30) may appear
	314	// (to wxWin apps) to be at (0, 0).
	315	if (GetParent())
	316	{
	317	wxPoint pt(GetParent()->GetClientAreaOrigin());
	318	point.x -= pt.x;
	319	point.y -= pt.y;
	320	}
	321	*x = point.x;
	322	*y = point.y;
	323	}
	324
	325	// TODO one day, make sense of all this horros and replace it with a readable
	326	// DoGetBestSize()
	327	void wxSliderMSW::DoSetSize(int x, int y, int width, int height, int sizeFlags)
	328	{
	329	int x1 = x;
	330	int y1 = y;
	331	int w1 = width;
	332	int h1 = height;
	333
	334	int currentX, currentY;
	335	GetPosition(&currentX, &currentY);
	336	if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	337	x1 = currentX;
	338	if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
	339	y1 = currentY;
	340
	341	AdjustForParentClientOrigin(x1, y1, sizeFlags);
	342
	343	wxChar buf[300];
	344
	345	int x_offset = x;
	346	int y_offset = y;
	347
	348	int cx; // slider,min,max sizes
	349	int cy;
	350	int cyf;
	351
	352	wxGetCharSize(GetHWND(), &cx, &cy,& this->GetFont());
	353
	354	if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
	355	{
	356	if ( m_windowStyle & wxSL_LABELS )
	357	{
	358	int min_len = 0;
	359
	360	GetWindowText((HWND) m_staticMin, buf, 300);
	361	GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());
	362
	363	int max_len = 0;
	364
	365	GetWindowText((HWND) m_staticMax, buf, 300);
	366	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	367	if (m_staticValue)
	368	{
	369	int new_width = (int)(wxMax(min_len, max_len));
	370	int valueHeight = (int)cyf;
	371	#ifdef __WIN32__
	372	// For some reason, under Win95, the text edit control has
	373	// a lot of space before the first character
	374	new_width += 3*cx;
	375	#endif
	376	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	377	x_offset += new_width + cx;
	378	}
	379
	380	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	381	x_offset += (int)(min_len + cx);
	382
	383	int slider_length = (int)(w1 - x_offset - max_len - cx);
	384
	385	int slider_height = cy;
	386
	387	// Slider must have a minimum/default length/height
	388	if (slider_length < 100)
	389	slider_length = 100;
	390
	391	MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE);
	392	x_offset += slider_length + cx;
	393
	394	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	395	}
	396	else
	397	{
	398	// No labels
	399	if ( w1 < 0 )
	400	w1 = 200;
	401	if ( h1 < 0 )
	402	h1 = 20;
	403	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	404	}
	405	}
	406	else
	407	{
	408	if ( m_windowStyle & wxSL_LABELS )
	409	{
	410	int min_len;
	411	GetWindowText((HWND) m_staticMin, buf, 300);
	412	GetTextExtent(buf, &min_len, &cyf,NULL,NULL,& this->GetFont());
	413
	414	int max_len;
	415	GetWindowText((HWND) m_staticMax, buf, 300);
	416	GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
	417
	418	if (m_staticValue)
	419	{
	420	int new_width = (int)(wxMax(min_len, max_len));
	421	int valueHeight = (int)cyf;
	422	/*** Suggested change by George Tasker - remove this block...
	423	#ifdef __WIN32__
	424	// For some reason, under Win95, the text edit control has
	425	// a lot of space before the first character
	426	new_width += 3*cx;
	427	#endif
	428	... and replace with following line: */
	429	new_width += cx;
	430
	431	MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
	432	y_offset += valueHeight;
	433	}
	434
	435	MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
	436	y_offset += cy;
	437
	438	int slider_length = (int)(h1 - y_offset - cy - cy);
	439
	440	// Use character height as an estimate of slider width (yes, width)
	441	int slider_width = cy;
	442
	443	// Slider must have a minimum/default length
	444	if (slider_length < 100)
	445	slider_length = 100;
	446
	447	MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE);
	448	y_offset += slider_length;
	449
	450	MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
	451	}
	452	else
	453	{
	454	// No labels
	455	if ( w1 < 0 )
	456	w1 = 20;
	457	if ( h1 < 0 )
	458	h1 = 200;
	459	MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
	460	}
	461	}
	462	}
	463
	464	void wxSliderMSW::SetRange(int minValue, int maxValue)
	465	{
	466	m_rangeMin = minValue;
	467	m_rangeMax = maxValue;
	468
	469	::SetScrollRange(GetHwnd(), SB_CTL, m_rangeMin, m_rangeMax, TRUE);
	470	wxChar buf[40];
	471	if ( m_staticMin )
	472	{
	473	wxSprintf(buf, wxT("%d"), m_rangeMin);
	474	SetWindowText((HWND) m_staticMin, buf);
	475	}
	476
	477	if ( m_staticMax )
	478	{
	479	wxSprintf(buf, wxT("%d"), m_rangeMax);
	480	SetWindowText((HWND) m_staticMax, buf);
	481	}
	482	}
	483
	484	WXHBRUSH wxSliderMSW::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
	485	WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
	486	{
	487	if ( nCtlColor == CTLCOLOR_SCROLLBAR )
	488	return 0;
	489
	490	// Otherwise, it's a static
	491	return wxControl::OnCtlColor(pDC, pWnd, nCtlColor, message, wParam, lParam);
	492	}
	493
	494	void wxSliderMSW::SetPageSize(int pageSize)
	495	{
	496	m_pageSize = pageSize;
	497	}
	498
	499	int wxSliderMSW::GetPageSize() const
	500	{
	501	return m_pageSize;
	502	}
	503
	504	void wxSliderMSW::SetLineSize(int lineSize)
	505	{
	506	m_lineSize = lineSize;
	507	}
	508
	509	int wxSliderMSW::GetLineSize() const
	510	{
	511	return m_lineSize;
	512	}
	513
	514	// Not yet implemented
	515	void wxSliderMSW::SetThumbLength(int WXUNUSED(lenPixels))
	516	{
	517	}
	518
	519	// Not yet implemented
	520	int wxSliderMSW::GetThumbLength() const
	521	{
	522	return 0;
	523	}
	524
	525	bool wxSliderMSW::ContainsHWND(WXHWND hWnd) const
	526	{
	527	return ( hWnd == GetStaticMin() \|\| hWnd == GetStaticMax() \|\| hWnd == GetEditValue() );
	528	}
	529
	530	void wxSliderMSW::Command (wxCommandEvent & event)
	531	{
	532	SetValue (event.GetInt());
	533	ProcessCommand (event);
	534	}
	535
	536	bool wxSliderMSW::Show(bool show)
	537	{
	538	wxWindow::Show(show);
	539
	540	int cshow;
	541	if (show)
	542	cshow = SW_SHOW;
	543	else
	544	cshow = SW_HIDE;
	545
	546	if(m_staticValue)
	547	ShowWindow((HWND) m_staticValue, (BOOL)cshow);
	548	if(m_staticMin)
	549	ShowWindow((HWND) m_staticMin, (BOOL)cshow);
	550	if(m_staticMax)
	551	ShowWindow((HWND) m_staticMax, (BOOL)cshow);
	552	return TRUE;
	553	}
	554
	555